Сделал перед запуском ulimit -n 60000, но не помогает :(
2005/12/23 18:27:34 [warn] 14000#0: 2048 worker_connections are more
than open file resource limit: 1024
2005/12/23 18:27:34 [notice] 14003#0: using the "epoll" event method
2005/12/23 18:27:34 [notice] 14003#0: nginx/0.3.17
2005/12/23 18:27:34 [notice] 14003#0: OS: Linux 2.6.14-gentoo-r5
2005/12/23 18:27:34 [notice] 14003#0: sysctl(KERN_RTSIGMAX): 0
2005/12/23 18:27:34 [notice] 14003#0: getrlimit(RLIMIT_NOFILE): 60000:60000
2005/12/23 18:27:34 [notice] 14004#0: start worker processes
2005/12/23 18:27:34 [notice] 14004#0: start worker process 14005